Since the introduction of smart devices, battery power has been and still remains a precious commodity. In this article we will review many of the features and settings of iOS devices that impact battery life, and make recommendations about how to conserve power.

One important thing to keep in mind is that battery life is complex, and the impact of one setting for a specific user may not always reflect the impact of that same feature on another user’s device. It’s also important to note that after you make any changes, be sure to charge your iOS device on a wall charger overnight. This full charge is often needed before any changes will be effective.

Apple has issued software updates for 2012 13-inch and 15-inch MacBook Pro with Retina displays, and 2012/2013 MacBook Airs to resolve issues having to do with batteries. The updates are available via the Software Update function in the Mac App Store.

This update is recommended for MacBook Air (mid 2012 and mid 2013) models. This update addresses rare issues where the battery unexpectedly stops functioning, the system does not recognize the battery, or the system hangs when the battery charge reaches less than one percent.